Hand oiler



S. O. PAULL HAND OILER July 28, 1931.

Filed Jan. l8, 1930 Patented .-luly 28; 1931 UNITED STATES PATENT OFFICE SAMUELiO. PAULL OF WELLSBURG, WEVST VIRGINIA, ASSIGNOR TO EAGLE MANUFAC- TURING COMPANY, OF WELLSBURG, W'EST VIRGINIA, A CORPORATION OF WEST VIRGINIA HAND OILER Application filed January 18, 1930. Serial No. 421,749.

This invention is directed to an improvement in hand oilers and particularly hand oilers of that type in which the oil or other fluid may be ejected under pumping pressure from the interior of the oilervth'rough manual operation and at Will.

' It has been heretofore proposed to provide a hand oiler in the forni of-a container having a delivery spout, Within which container there 1s arranged cooperating ele- ,ments providing a pump, with the movable elementof the pumpremotely operated at the will of the user by a inger-piecevconlveniently accessible inalll positions of the oiler, so that oil may be delivered at will 'under more or less pressure from the spout.

In all such hand Oilers with which I am familiar there` are objections and disadvantages from the practical standpoint which it is the aim and purpose of the present iiiventioii to obviate. For example, in such previous oilers the pumping assembly has been made up of two cooperating elements arranged iii telescopic relation for relative movement .and these elements have ordinarily been formed of tube-like sections, the sections being of relatively thin material with attendant liability to distortion under Y slight strain, with the result of a more or less inaccurate fit and a consequent loss of pressure and inadequate pumping pressure.

The present invention, With a view to avoiding this objection, provides a pumping assembly made up of intertitting relatively movable parts, with such parts of substantial thickness to avoid distortion under ordinary stresses and more particularly carerate' sliding inte rfit which will positively pre-l fully machined to insure an absolutely accuclude leakage between the operation. p

Furthermore, the movable memberof the pumping assembly is operated through an element leading through the spout carrying cap for the container. As the oiler is frequently used in an inverted o'r substantially inverted position, or at least with the spout downwardly inclined, there is more or less oil accumulated on this element in the successive operations of the pump and this oil finds its parts during Way to the outer surface ot the cap and gradually works down outside the container to present an oily accumulation around the container wherever it may be deposited.

A further object of the present invention is the provision of means whereby the element, which extends from the pumping assembly to the manually operable member cxtei'iorly of the oiler, is contiually wiped free of any accumulated oil, and thus the possibility of the oil reaching the exterior of the cap through this source is entirely eliminated.

Oilers of this type as previouslyconstruct-v ed present a spout carrying cap which is threaded exteriorly of an upstanding rim on the container, When the oiler is in inverted position, oil accumulates at the juncture of the cap and container rim and when the oiler isrestored to an upright position, this oil percolates between the cap and rim exteriorly of the latter and flows down outside of the container, with a resultant oily deposit around the container.

The present invention overcomes this objection by making the spout carrying cap as a hollow receptacle closed except tor the Opening through which the pump operating element passes and arranges this hollow cap for threaded cooperation interiorly of the rim rising from the container proper. Any oil accumulating against this cap when the oiler v is inverted in use will accumulate within the hollow cap or if accumulated between the hollow cap and rim, will flow back into the container both from the hollow cap and from a position between the hollow cap and rim, so that there is no possibility of oil reaching the exterior of the container from these sources of the machine .being oiled during the 011mg operation.

The invention is illustrated in the accompanying drawings, in which:

Figure 1" is a vertical sectional view, partly in elevation, of the improved hand oiler.

Figure 2 is a perspective view showing .the cap, protecting cap plate, pumping assembly and spout, which parts constitute in e'ect a unit bodily separable from the container.

Figure \3 is an enlarged broken sectional view showing a portion of the pumping assemllply and the valve which cooperates t erewit f The improved hand oiler comprises a container 1 which, while preferably of the shape shown, may obviously be of any appropriate outline form. The container is of gradually reduced diameter in its upper portion with the wall terminating in an annular upstanding ange 2 dening an opening 3 leading from the container, the flange being threaded. -A pumping unit is designed for removable connection with thecontainer and includes a hollow cap 4, the side wall5 ofwhi'ch is threaded for cooperationinteriorly of the container flange 2l The hollow cap is closed at the upper end by a cap plate-6 which is preferably of somewhatv more rigid metal than the remainder pf the hollow cap and has a diameter exceedingthat of the cap to present a marginal' flange which overlies and extends appreciably beyond the flange 2 of the container, as

clearly shown in Figure 1 of the drawings.

plate but provides between said flange 10 and the wall 5 of the hollow cap 4 a space for the reception of a gasket 11 against which the upper edge of the flange 2 of/ the container bears in the assembling of the parts to thereby insure a non-leaking engagement at this point.

Ihecap plate 6 forms a supporting element for the delivery spout 12 which is constructed of appropriate length and of gradually decreasing diameter upwardly, terminating in a laterallybent or if preferred straight delivery end 13, as is usual in this type of device. f

'A nipple 14 is secured in the cap 4, comprising-ahollow section 15 of an exterior diameter to iit frictiona-lly/within the lower end of the spout 12, the nipple including a flange 16 at the lower end of and projecting beyond the section 15, and a depending section 17 of less diameter than the section 15. The juncture of the sections 15 and '1.7 within the nipplev is formed to provide a valve seat 18, an'up- Wardly 'Opening ball or vother valve 19 being arranged to normally cooperate with such seat under the influence of a coiled spring 20, the lower end of which bears on the valve while the upper end engages beneath an inturned edge 21 at the upper end of section 15. The nipple is secured in the cap 4 with the flange 16 underlying the lower wall 22 of the cap, the juncture belng sealed and secured as by solder.- The section 15 extends through the cap to receive the lower end of the spout, while the section 17 depends from the cap to receive and support the pumping assembly. A pipe section 23 is fitted at its upper end within the section 17 of the nipple, the juncture being sealed and secured, and this pipe, preferably formed with a slight bend at 24, de ends into the container.

he pumping assembly proper includes a movable cylinder 25 of materially greater diameter than that of the pipe 23, thiscylinder being open at its upper end and protruded at its lower end to form a conical terminal 26, the apex end providing a centrally arranged opening 27 normally closed against pressure from within the cylinder b avalve 28, such vas a ball, with the valve resiliently held to its seat by a spring 29 bearing between the valve and a fiange 30 overlyin the valve.

The cooperating or p unger member of the pumping assembly is in the form ofa hollow, cylindrical sleeve-like member 31 open at its lower end and closed at its upper end v except for a threaded opening 32 through whichthis plunger is removably connected to the lower open end of the pipe 23. A spring 33 .bears'between the closed upper end of the plunger and the closed lower end of the-cylinder and serves to normally maintain these parts at their limit of relatively opposite and separating movement. l A characteristic feature of the present invention isV in the provision of the cylinder and plunger to insure cooperation against possible `distortion under usual stresses and an accurate slidingy fit in lall relative movements.

To secure this, the cylinder 25y is made of an appropriate length of tubing having a wall 'there is substantially a non-leaking fitbe` tween the plunger and cylinder in all positions of these parts and yparticularly during the pumping operation.

This not only avoids the possibility of leakage,'which/is a decided disadvantage of prior construction, but avoids the necessity of uti- .lizing a film of oil .to sea-l the cooperation of these parts, as is also required in the previous structures. This latter disadvantage of the previous structures is quite apparent-vin the operation of such oilers, for a very considerable pumping operation is necessary in suchl mal position, to rest substantially at the juncture of thebottom and side wall of the container 1 in that portion of the container which is lowest when the container has been turned into a position to deliver through the delected end 13 of the spout.` This co-operal tion is materially 'facilitated by the conical end of the cylinder 25, and insures the practical delivery of substantially all of the oil in the container by the pump.

lith the present construction and incident to the careful machining of the parts to secure the desired non-leaking sliding lit, the

pumping assembly starts pumping delivery of the oil immediately the pump is operated, and it has been found that the oil remaining in the pumping assembly and in the spout after use of the oiler will remain in these parts for a very considerable period after use` of the oiler, so that the pumping assembly of the present construction may be said to be continually primed foroperation as distinguished from tle necessity for such pri\ming at each operation of the prior devices.

' The cylinder which constitutes the movable yelement of the pumping assembly is designed 'to be manually operated at will and for this vpurpose there is provided a rod 34, the lower 34 may extend in a straight line through'the cap. I

The rod extends through an opening 39 in the bottom wall of K the hollow cap and through an opening 40 in the cap plate 6. The upper end of the rod is headed at 41 and passes through an opening 42 in the inner end of a linger lever 43 in the form of an appropriately bent strip which passes through a transversely elongated opening 44 in the upstanding wall 9 of the cap plate, the free end.

ofthe linger lever projecting beyond this wall and being downturned to avoid edge contact with the thumb or finger of the user. The

lower margin of-the opening 44 forms a fulcrum for the linger lever and obviously the depression of the free end of this lever by the finger or thumb of the user will reciprocate the cylinder 25, the lever operating the cylinder in one direction and the spring 33 operating it in the opposite direction.

' Secured to the cap plate, and more particularly to the underside of the radial extension 8 thereof, is a strip 45 bent into loop form and .extending down alongside of and in spaced relation to the container to provide a handle.

T his handle immediately underlies the free end of the linger lever 43 and affords a means for supporting the container by grasping the handle with the hand with the thumb overlying the linger lever for convenient operation of the pump.

It is noted that all parts described other than the container constitute in effect a unit assembly in that they may be removed from or yapplied to the container as a unit and thus rendered conveniently accessible for repair or replacement. Furthermore, the pumping assembly including the pipe 23 is deflected from the vertical and in the same direction as that of the delivery end 13 of the spout.- Thus, when the oiler is turned to delivei1 from such spout end, the pumping assembly projects toward the lowest point of the liquid body within the container and will thus insure delivery of oil even with a very small quantity of the latter within the container.

- As previously stated, an objection to the previous constructions is the constant accumulation of oil on therod 34 which radually reaches the exterior of the cap an liows down the exterior of thecontainer, In order to avoid this possibility, the present construction includes a felt or similar body 46 encircling the rod 34 within the hollow cap 4. This felt-or like washer is held between the upper and lower walls of the cap and substantially covers the opening 39 in the lower wall 22 of the cap. This washer continually wipes any accumulated oil from the rod 34 and compels such oil to llow back through the opening 39 into the container. Thus, the rod in that portion projecting above the cap plate 6 is continually dry so far as oil accumulations are concerned and there is-no possibility of oil from this source reaching the exterior of the container.

Furthermore, as frequently happens when the container is inverted or even titled from the horizontal, the tendency of oil to liow between the liange of the container and the cap is, in the previous constructions, a source of annoyance becausev in such constructions the cap is on the exterior of the container flange and the oil accumulating at the upper end of the. cap will naturally llow down on the outside of the container. In the present construction,the ca fits within the flange and the free edge o the flange is in sealed "smulatein ^contact with the cap plate. oil which might accumulate between the a .and flange cannot escape over the edge of t e flange to lliow down the outside of the container but Ufmustgnd its way back into the container when the latter isf returned to upright posi'- vtion. c ,f Furthermore, any tendency of oil t pass f over/l the flange, particularly when the .oiler 1 is inverted, is taken care of by the hollow ca for/such oil will find its way through t e opening 39 plast the washer 4t and will accut e hollow cap 4 and when the v oiler is returned to normal upright position, 15 this oil within the hollow cap will gradually seep back into the container. Therefore, the hollow cap combined with the gasket 46 has thel important function of preventing vany leakage of il over the edge of the-flange of 20 the container or reaching the top of the cap plate. Therefore, under this construction the exterior of the container andthe cap plate will remain free at all times of accum ated oil and the objectionable oily deposit fol- 25 lowing such leakage, asin "prior structures,

is entirely avoided.

In the operation of the oiler', the depresl sion of the finger lever moves the cylinder 25 upwardly against the tension of the spring W 33,l ejeeting the contained air throughthe.

spout 12 past the valve 19. On releasing therpressure on) the finger lever, the cylinder 25 moves downwardly under the stress of spring 33 and the oil in the container flows ,35 past the valve 28 and into the cylinder. On the next stroke of the cylinder this oil is raised by the cylinder and forced upwardly into the' spout 12 'past the valve 19., the'successive pumping movements of the cylinder 4 accumulating suiiicient oil in the spout to force the same through the spout outlet 13, the valve 19 of course preventing return flow. It is noted that the oil beyond the cylinder 25 is forced' through a greatly restricted 45 passage, namely that of the pipe section 23.

This tends to increase the flow Aof. the oil passinginto the spout, so that by the similar pum ing operation, theoil may be ejected a lconsiderable distance be ond the spout out- I-'Wlet 1 3, or in other, wor s, delivered. with a desirable force ,freqi'iently found necessary in o' operations., It be noted that the flange 30, hall valve 28 andsprings 29 and 33 arein. no way I' 55 fixed within the" cylinder 25, sothat when p vsaid cylinder is separated-from the pump Y assembl ,l theseparts may be readily removed yinverting the c linder to thereby 4 facilitate cle Fu'rt ermore, this par- A6l! ticular relation o` parts insures ease and sim'-,

plici of assembling as vwill-be apparent'.`

' .Wlt is. claimed to be new is:

' 1.` Inga hand oiler. with vpump delivery, a container 'a ca removably secured thereto,

35 aA spout risingJ lom the cap, a pumping assembiy arranged within the eontaineasaid pumping assembly including a cylinder and within aflan e rising from the container, a

spout extending through and beyond the cap,.a pipe section -of less diameter than the spout and extending below the cap, a pumping assembly removably carried by the pipe section, a rod connected to the (pumping assembly and passing through an beyond the hollow cap, a finger lever for operating the rod, and means within the hollow cap to wipe the rod -clear of oil in the movementof the rod under the finger lever, whereby oil is prevented from reaching the exterior of the-'cap on the rod.

3. In a hand oiler with pump delivery, a container having an upstanding threaded flange, a hollow cap adapted to it` within and have threaded connection with said Hangs, a spout rising from the cap, a pi e section of restricted diameter depending romr the cap and in lcommunication with the spout, a pumpingassembly removably carried by the lower end of the pipe section, a rod connected to and serving to ope'rate the pumping assembly, said rod extending through the hollow cap, a finger lever mounted on the hollow 'cap and connected to said rod, and a wi ing gasket encircling the rod within the ho owl 4. -In a hand oiler with pump delivery, a 'container having anu standing threaded flange, a hollow cap a aptedlto fitwithin andldhave. threaded connection with said Hangs, a spout rising from the cap, a pipe section of restricte diameter spending from thecap and in communication with the spout, a pumping assembly removably carried by the lower7 end of the pipe section, a

.rod/connected to and serving to operate the pumping assembly, said rod extending through the hollow cap, `a linger lever mounted on the-hollow cap and connected to said rod, and a wiping gasket 'encircling the being closed against the spout andproviding a temporary reservoir for the reception of' excess oil during the inversion of the oiler,

the hollow cap and kcontainer being in comrod withinthe hollow cap, said hollow cap 5. In a hand oiler .withfpump delivery, a container, a cap removably secured thereto, a spout rising from the cap, a pumping assembly arranged within the container, said pumping assembly including a fixed cylinder and a plunger mounted for relative movement on the outside of the fixed cylinder and machined for a substantially non-sliding interit, a pipe section of materially reduced diameter with respect to the plunger of the pump assembly, said pipe being carried by the cap and removably connecte to the plunger and providing intermediate the pump assembly and s out a means for increasing the pressure of. elivery, a spring between the plunger and cylinder to normally force the plunger away from the cylinder, a rod connected to the plun er and extending through the cap, and a han lemounted on the cap and connected to the rod to operate the plunger in the pumping operation in opposltion to the spring.

6. In a hand oiler with pump delivery, a container having an upstanding neck flange, a hollow cap itted within and connected to said flange, said cap including'v a top plate having a diameter in excess of the diameter of the flange and having its marginal edge turned downwardly to provide a uard for the ange and cap connection an provide a seat for the reception of a sealing gasket v for the flange, said cap plate being radially y extended and having a projecting portion provided at its end with an upturned lug, a spout carried by andextending through the cap, a pump depending from the cap, said pump including a pump barrel and a restricted tube between, the barrel and the spout, ,a pump operating rod extending through the hollow cap and above the cap plate, a finger lever fulcrumed on said lug and connected to said iod for operating the pumping assembly, and a handle formed of a bent strip of metal having its twoends connected to the projecting portion of thecap plate and extending downwardly adjacent the body of the container.-

ln testimony whereof I ailix my signature.

v SAMUEL O. PAULL. 

